Grain-cleaning- machine



J. P. TUNISON.

Straw Carrier.

Patented Sept. 18, 1860.

UNITED STATES PATENT OFFICE.

JOHN P. TUNISON, OF OVID, NEIV YORK.

GRAIN-CLEANING MACHINE.

Specification of Letters Patent No. 30,099, dated September 18, 1860.

To all whom "it may concern:

Be it known that I, JOHN P. TUNISON, of Ovid, in the county of Senecaand State of New York, have invented anew and useful Improvement inGrain-Cleaning Machines; and I do hereby declare that the following is afull, clear, and exact description of the same, reference being had tothe accompanying drawings, forming a part of this specification, inwhich' Figure 1, represents a vertical section of my additionalseparator when attached to a grain threshing and separating machine ofthe usual construction. Fig. 2, a plan of the additional separator whendetached.

Similar letters of reference, in each of the several figures indicatecorresponding parts.

My invention relates to an additional separator which may be attached toany grain threshing, separating and clover hulling machine by means of ahinge for the purpose of subjecting the refuse or partly threshed andseparated grain of the thresher apron and separator shoe to anadditional and continuous separating process, as will be describedhereinafter, and the nature of my invention consists, 1st, in carryingthe upper half of the endless slatted belt of my additional separator,over intermediate guide rollers so that said upper half of the belt bedivided into two portions of different inclinations and another verticalor nearly vertical portion between the two, in combination with a fanblower, hopper and skeleton bottom, as hereinafter described.

It consists, 2nd, in arranging the fan within the endless slatted beltas hereinafter set forth.

To enable others, skilled in the art, to make and use my invention, Iwill proceed to describe its construction and operation.

Y, is a grain threshing and separating machine of the usualconstruction. The frame 0, O, of my additional separator is hinged tosaid machines, by means of a hinge rod Q, passed to corresponding holesin the rear end of frame 0, O, and in the forward end of said machine.This rod can be withdrawn whenever it is desired to dethe endless beltinto two portions (one between rollers G, and H, and the other be tweenthe rollers I, and J of different inclinations, whereby the thirdportion of the upper half of the belt (between the rollers H, and I)will be placed in a vertical or nearly vertical position. Bottoms C, andD, are arranged underneath the said portions of the belt between therollers G, H, and I, J. The outer end of bottom 0, is made in the formof a skeleton or wire grate S, so as to answer the oflice of aseparating shoe. Underneath this grate, there is a hopper L, and behindsaid hopper, a fan blower M; hopper and fan blower being inclosed withinthe slatted belt and situated in rear of the vertical portion of thesame.

The forward end of the frame 0, 0, may be placed higher or lower bymeans of adjustable legs K, so as to suit the inclination of the portionof the belt between the rollers G, ad H, to the height and peculiararrangement of the threshing and separating machine to which myadditional separator is to be attached.

The refuse material of the threshing and separating machine Y, passesout and upon the slatted belt E, F, in the direction of arrows 1, and 2.As the belt revolves in the direction of arrow 3, the slats carry therefuse material up the inclined bottom C, and upon the skeleton bottomS. Here the grain contained in the refuse material of machine Y, dropsthrough and during its descent (before it reaches the hopper L, whichguides it off) is acted upon by the blast arising from fan-blower M, insuch a manner that any dirt chaft' or other light impurities which mayhave passed through the skeleton bottom together with the grain,

will be blown through the open spaces in the vertical portion of theslatted spaces, onto bottom D, to be carried off by the slats, togetherwith the chaff, &c., which has passed over the skeleton bottom androller H, onto bottom D. Thus the grain contained in the refuse materialof machine Y, and which is usually lost to the farmer will be gatheredinto hopper L, in a clean state.

hat I claim as my invention and desire to secure by Letters Patent, is

1. Carrying the upper half of the endless slatted belt E, of myadditional separator, over intermediate guide rollers H, I, so that saidupper half of the belt be divided into two portions of differentinclinations and slatted belt substantially in the manner and anotherVertical or nearly vertical portion for the purpose described. betweenthe two, in combination with a fan blower M, hopper L, and skeletonbottom JOHN TUNISON' 5 S, substantially as and for the purposes setWitnesses:

forth. GoonwlN Y. AT LEE,

2. Arranging the fan within the endless R. W. FENWICK.

